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(parent: 70f5dc5) | patch
[S390] smp: fix sigp stop handling
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Thu, 29 Oct 2009 14:04:13 +0000 (15:04 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Thu, 29 Oct 2009 14:05:13 +0000 (15:05 +0100)
commitf8501ba77d69c88a65e4ebbe03bdc65b1edb0b86
tree27e42cf7bd5171c5b17c2d423b6ae5d3394cb6eftree | snapshot (tar.gz zip)
parent70f5dc514c0b183ee813dc3b3983b04891fd1e7acommit | diff
[S390] smp: fix sigp stop handling

According to the architecture a cpu must not necessarily enter stopped
state after completion of a sigp instruction with "stop" order code.
So remove the BUG() statement after self sending sigp stop to avoid
that it ever gets reached.
Also add a sigp busy check to make sure that the order gets delivered.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/kernel/ipl.c diff | blob | blame | history
arch/s390/kernel/smp.c diff | blob | blame | history
arch/s390/kernel/swsusp_asm64.S diff | blob | blame | history